CN211754833U - Decomposing device for phenate in coal tar processing process - Google Patents
Decomposing device for phenate in coal tar processing process Download PDFInfo
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- CN211754833U CN211754833U CN201922326992.8U CN201922326992U CN211754833U CN 211754833 U CN211754833 U CN 211754833U CN 201922326992 U CN201922326992 U CN 201922326992U CN 211754833 U CN211754833 U CN 211754833U
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- phenate
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- sodium carbonate
- crude phenol
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Abstract
The utility model relates to a decomposition device of phenate in coal tar course of working, including the phenate storage tank, phenate raw material pump, the reactor circulating pump, the sprayer, the nozzle, the baffle, groove in the middle of the sodium carbonate, pump in the middle of the sodium carbonate, groove and crude phenol middle pump in the middle of the crude phenol, the baffle falls into reaction zone and disengagement zone with the reactor, raw materials phenate solution is sent into the reactor by phenate raw material pump pumping, send into the sprayer again by reactor circulating pump pumping and react the feed gas and mix the back by the nozzle blowout and accomplish and decompose the entering disengagement zone, under the effect of baffle and gravity, crude phenol gathers in the upper strata, sodium carbonate solution deposit is in the lower floor, accomplish the separation of crude phenol and sodium. The beneficial effects are as follows: the decomposition reaction process and the oil-water separation process are completed in the same equipment, the process flow is compact, the occupied area is small, and the defects of overlong process flow, complex operation and overhigh investment of the existing carbon dioxide decomposition process are overcome.
Description
Technical Field
The utility model relates to a metallurgical coking industry coal tar processing technology field especially relates to a decomposition device of phenate in coal tar course of working.
Background
At present, a sulfuric acid intermittent decomposition process, a sulfuric acid continuous decomposition process and a carbon dioxide decomposition process are common decomposition process flows of phenate in the existing coal tar processing process at home and abroad. Under the influence of tar processing, phenates are mainly present in the form of sodium phenate.
In industrial production, because a carbon dioxide gas source is simple and easily available, such as flue gas, blast furnace gas and the like can be used as reaction raw material gas, the carbon dioxide decomposition process flow is a more phenolate decomposition process adopted in China, and the detailed process flow is shown in figure 1.
As can be seen from fig. 1, the reaction feed gas directly entered the liquid phase at the bottom of the decomposition column and bubbled, and reacted with the phenolate solution in the decomposition column to produce crude phenol and salt, which were separated by standing to obtain crude phenol and salt solution, respectively. The decomposition efficiency of the carbon dioxide decomposition process is low due to the defects of large bubble particle size, uneven distribution and the like of the reaction raw material gas. In the actual production process, in order to improve the efficiency, a plurality of decomposition towers are generally arranged in the process flow, and multi-stage decomposition is adopted, so that the process has the defects of overlong flow, complex operation and higher investment.
SUMMERY OF THE UTILITY MODEL
For overcoming the prior art defect, the utility model provides a technical problem provides a decomposition device of phenate in coal tar course of working, and decomposition reaction process and oil-water separation process are accomplished in same equipment, and process flow is compact, and area is little, has overcome current carbon dioxide and has decomposed process flow overlength, and the operation is complicated, invests in too high shortcoming.
In order to achieve the above purpose, the utility model adopts the following technical scheme:
a decomposing device of phenate in the coal tar processing process comprises a phenate storage tank, a phenate raw material pump, a reactor circulating pump, an ejector, a nozzle, a baffle, a sodium carbonate intermediate tank, a sodium carbonate intermediate pump, a crude phenol intermediate tank and a crude phenol intermediate pump, and is characterized in that the baffle is arranged in the reactor and divides the reactor into a reaction area and a separation area; the phenate storage tank is connected with the reactor reaction zone through a phenate raw material pump; the inlet end of the reactor circulating pump is connected with the reactor reaction zone, the outlet end of the reactor circulating pump is connected with the ejector and then connected with a nozzle arranged in the reactor reaction zone, and the inlet end of the ejector is provided with a reaction raw material gas inlet; one end of the sodium carbonate intermediate tank is connected with the lower part of the separation zone of the reactor, and the other end of the sodium carbonate intermediate tank is provided with a sodium carbonate outlet connected with a sodium carbonate intermediate pump; one end of the crude phenol intermediate tank is connected with the upper part of the separation zone of the reactor, and the other end of the crude phenol intermediate tank is provided with a crude phenol outlet connected with a crude phenol intermediate pump.
The nozzles are uniformly arranged in parallel and are connected with the ejector in series.
The phenate raw material pump, the reactor circulating pump, the sodium carbonate intermediate pump and the crude phenol intermediate pump are centrifugal pumps.
The working principle comprises the following steps:
1) the raw phenate solution stored in the phenate storage tank is pumped out by a phenate raw material pump and sent into a reactor reaction zone;
2) reaction: pumping the materials in the reaction zone of the reactor by a circulating pump of the reactor, feeding the materials into an ejector to be mixed and reacted with the reaction raw material gas, spraying the materials out of the ejector by a nozzle arranged in the reactor and returning the materials to the reaction zone of the reactor, and performing reciprocating circulation to finish the decomposition reaction process and form a mixed phase of crude phenol and a sodium carbonate solution;
3) separation: the mixed phase enters the reactor separation area through the baffle, and flows horizontally through the baffle in the reactor separation area, because the mixed phase has density difference and is immiscible between the two phases, under the simultaneous action of the baffle and gravity, the crude phenol is gradually accumulated in an upper layer in a small specific gravity manner, and the sodium carbonate solution is gradually deposited in a lower layer in a large specific gravity manner, so that the separation of the crude phenol and the sodium carbonate solution is completed;
4) the full flow of the crude phenol enters a crude phenol intermediate tank, and the crude phenol is pumped out by a crude phenol intermediate pump and sent to a product storage area for storage;
5) the full flow of the sodium carbonate solution enters a sodium carbonate intermediate tank, and the sodium carbonate solution is pumped out by a sodium carbonate intermediate pump and sent to a product storage area for storage.
Compared with the prior art, the beneficial effects of the utility model are that:
1) the utility model is characterized in that the decomposition reaction process and the oil-water separation process are completed in the same reactor, the process flow is more compact, the used equipment is less, the occupied area is small, and the investment is saved;
2) in the utility model, the reaction raw material gas is uniformly mixed with the phenate raw material through the ejector and then returns to the reactor through the nozzle, so that the bubble particle size is smaller, the mixing is more uniform, the reaction is more sufficient, the decomposition efficiency is improved, and the decomposition efficiency can generally reach more than 99%;
3) the utility model discloses in, set up nozzle and baffle in the reactor, theoretically divide into reaction zone and disengagement zone with the reactor, the disengagement zone material does not receive the disturbance in reaction zone, and is static relatively, more is favorable to the double-phase separation of profit.
Drawings
FIG. 1 is a schematic view of a prior art process flow;
FIG. 2 is a schematic view of the process flow structure of the present invention;
fig. 3 is a partially enlarged structural diagram of the part C in fig. 2.
In the figure: 1-phenate storage tank 2-phenate raw material pump 3-reactor 4-reactor circulating pump 5-ejector 6-nozzle 7-baffle 8-sodium carbonate intermediate tank 9-sodium carbonate intermediate pump 10-crude phenol intermediate tank 11-crude phenol intermediate pump
Detailed Description
The following description of the embodiments of the present invention will be made with reference to the accompanying drawings:
as shown in fig. 2 and fig. 3, the utility model relates to a decomposition device of phenate in coal tar processing process, which comprises a phenate storage tank 1, a phenate raw material pump 2, a reactor 3, a reactor circulating pump 4, an ejector 5, a nozzle 6, a baffle 7, a sodium carbonate intermediate tank 8, a sodium carbonate intermediate pump 9, a crude phenol intermediate tank 10 and a crude phenol intermediate pump 11, wherein the baffle 7 is arranged in the reactor 3 to divide the reactor 3 into a reaction zone and a separation zone, and the separation zone is not disturbed by the reaction zone and is relatively static, which is more beneficial to oil-water two-phase separation; the phenate storage tank 1 is connected with the reaction zone of the reactor 3 through a phenate raw material pump 2; the inlet end of the reactor circulating pump 4 is connected with the reaction zone of the reactor 3, the outlet end of the reactor circulating pump is connected with the ejector 5 and then connected with a nozzle 6 arranged in the reaction zone of the reactor 3, and the inlet end of the ejector 5 is provided with a reaction raw material gas inlet; one end of the sodium carbonate intermediate tank 8 is connected with the lower part of the separation zone of the reactor 3, and the other end is provided with a sodium carbonate solution outlet connected with a sodium carbonate intermediate pump 9; one end of the crude phenol intermediate tank 10 is connected with the upper part of the separation zone of the reactor 3, and the other end is provided with a crude phenol outlet connected with a crude phenol intermediate pump 11.
The nozzles 6 are uniformly arranged and are connected in parallel with the ejector 5.
The phenate raw material pump 2, the reactor circulating pump 4, the sodium carbonate intermediate pump 9 and the crude phenol intermediate pump 11 are centrifugal pumps.
The working principle comprises the following steps:
1) a raw phenate solution (the phenol content is generally 18-20%, the temperature of the phenate at the inlet of the reactor 3 is 40-50 ℃) stored in a phenate storage tank 1 is pumped out by a phenate raw material pump 2 and sent into a reaction zone of the reactor 3;
2) reaction: pumping the materials in the reaction zone of the reactor 3 by a reactor circulating pump 4, feeding the materials into an ejector 5 to be mixed and reacted with reaction raw material gas (the concentration of carbon dioxide is 12-25%), spraying the materials back to the reaction zone of the reactor 3 through a nozzle 6 arranged in the reactor 3, and performing reciprocating circulation to finish the decomposition reaction process and form a mixed phase of crude phenol and a sodium carbonate solution;
the reaction raw material gas is uniformly mixed with the raw phenate material through the ejector 5 and then returns to the reactor 3 through the nozzle 6, so that the bubble particle size is smaller, the mixing is more uniform, the reaction is more sufficient, the decomposition efficiency is improved, and generally the decomposition efficiency can reach more than 99%;
3) separation: the mixed phase enters a separation zone of the reactor 3 through a baffle 7 and flows horizontally through the baffle 7 in the separation zone of the reactor 3, and because the mixed phase has density difference (the specific gravity of the crude phenol is 0.8-0.95 and the specific gravity of the sodium carbonate solution is 1.14-1.15) and is immiscible with the two phases, the specific gravity of the crude phenol is small and gradually accumulated in an upper layer and the specific gravity of the sodium carbonate solution is large and gradually deposited in a lower layer under the simultaneous action of the baffle 7 and gravity, so that the separation of the crude phenol and the sodium carbonate solution is completed;
4) the full flow of the crude phenol enters a crude phenol intermediate tank 8, and the crude phenol is pumped out by a crude phenol intermediate pump 9 and sent to a product storage area for storage;
5) the sodium carbonate solution flows into a sodium carbonate intermediate tank 10, is pumped out by a sodium carbonate intermediate pump 11 and is sent to a product storage area for storage.
The above description is only the preferred embodiment of the present invention, but the protection scope of the present invention is not limited thereto, and any person skilled in the art is in the technical scope of the present invention, and according to the technical solution of the present invention and the design of the present invention, equivalent replacement or change should be included in the protection scope of the present invention.
Claims (3)
1. A decomposing device of phenate in the coal tar processing process comprises a phenate storage tank, a phenate raw material pump, a reactor circulating pump, an ejector, a nozzle, a baffle, a sodium carbonate intermediate tank, a sodium carbonate intermediate pump, a crude phenol intermediate tank and a crude phenol intermediate pump, and is characterized in that the baffle is arranged in the reactor and divides the reactor into a reaction area and a separation area; the phenate storage tank is connected with the reactor reaction zone through a phenate raw material pump; the inlet end of the reactor circulating pump is connected with the reactor reaction zone, the outlet end of the reactor circulating pump is connected with the ejector and then connected with a nozzle arranged in the reactor reaction zone, and the inlet end of the ejector is provided with a reaction raw material gas inlet; one end of the sodium carbonate intermediate tank is connected with the lower part of the separation zone of the reactor, and the other end of the sodium carbonate intermediate tank is provided with a sodium carbonate outlet connected with a sodium carbonate intermediate pump; one end of the crude phenol intermediate tank is connected with the upper part of the separation zone of the reactor, and the other end of the crude phenol intermediate tank is provided with a crude phenol outlet connected with a crude phenol intermediate pump.
2. The decomposition device for the phenate during the coal tar processing according to claim 1, wherein the nozzles are uniformly arranged in parallel and connected with the ejector in series.
3. The decomposition device for the phenate during the coal tar processing according to claim 1, wherein the phenate raw material pump, the reactor circulating pump, the sodium carbonate intermediate pump and the crude phenol intermediate pump are centrifugal pumps.
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| Application Number | Priority Date | Filing Date | Title |
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| CN201922326992.8U CN211754833U (en) | 2019-12-23 | 2019-12-23 | Decomposing device for phenate in coal tar processing process |
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| Application Number | Priority Date | Filing Date | Title |
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| CN201922326992.8U CN211754833U (en) | 2019-12-23 | 2019-12-23 | Decomposing device for phenate in coal tar processing process |
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| CN211754833U true CN211754833U (en) | 2020-10-27 |
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Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN110975770A (en) * | 2019-12-23 | 2020-04-10 | 中冶焦耐(大连)工程技术有限公司 | Decomposition process and device of phenate in coal tar processing process |
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Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN110975770A (en) * | 2019-12-23 | 2020-04-10 | 中冶焦耐(大连)工程技术有限公司 | Decomposition process and device of phenate in coal tar processing process |
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